Standing valve for oil-well pumps



July 14, 1925;

P. RITTER STANDING VALVE FOR .OIL WELL PUMPS Filed April 21, 1924Patented July 14, 1925.

UNITED STATES PETE BITTER, 01 LOS ANGELES, CALIFORNIA.

PATENT OFFICE.

srmme VALVE FOR OIL-WELL runrs.

Application filed April 21, 1924. Serial Ito. 707,935.

To all whom it may concern:

Be it known that I, PETE RrrrER, a citizen ofthe Republic of Germany,residing at Los Angeles, inthe county of Los Angeles, State ofCalifornia, have invented a new and useful Standing Valve for Oil-WellPumps, of

. which the following is a specification.

. barrel. The standing valve ordinarily consists of a steel ball seatedin a standing valve body which has a conical seat formed thereon, thisseat resting upon a co-acting seat formed-in a shoe secured to the lowerend of the barrel. I

In many cases oil well. pu'mps are called upon to pum oil which maycontain 'considerable san silt, and other abrasive matter. It is quiteessential, therefore, that the standing valve seat be securely seated atall times to prevent the entrance of sand or silt between the surfacesof the'seats thereof, and to prevent a cutting of the seat in the shoeand the co-acting seat on the stand ing valve body due'to leakagetherethrough.

In many cases considerable gas is present in the well and this gas tendsto lift the standing valve body. The standing valve body is alsosubjected to the vibration of the pump, all of thesecauses tending toeither lift it or shake it loose from'its seat. It is an object of myinvention to provide a standing valve body which is positively heldagainst its seat at all times with considerable pressure.

' In the standard form of oil well pump, the pump barrel is suspended onsucker rods and suitable facilities are provided in the derrick forquickly ulling these sucker rods from the well, so t at ready access canbe had to'the barrel. It is also common rac-' ties to either -provide agarbutt r by which the standin valve seat maybe with-- drawn with the punger, or to provide detachable connections between the lower end of thebarrel and the standin .valve body, so that the standing valve y can theplunger. It is a further object of my invention to provide means .forresiliently be portion of the body 15, and a steel picked up andwithdrawn from the well with forcing the standing valve body against itsseat and at the same time allow the standing valve body to be withdrawnwith the plunger either through the agency of a garbutt rod or by asuitable pick-up device.

Since nearly all the oil pumped-contams some sand or silt which tends tosettle in the pump, it is a further object of my invention 'ation, andof very high efliciency.

Further objects and advantages be made evident hereinafter.

Referring to the drawing which is for illustrative purposes pnl' v Fig.1 is an elevation-through th e lowe r portion of the pump barrel showingthe shoe and the standing valve body supported in place therein.

Fig. 2 is a section on a plane represented by the line 2-2 of Fig. 1. V

Fig. 3 is a view showing the method of msertin and withdrawing thestanding valve body mm the shoe. 5

In the form of my 'mvention-disclosed, 11

is the lower end of the ump barrel which is supported from the tu ing ofthe well, not

shown. Slidin inside the pump" barrel 11- is a standard p unger, notshown, wh1ch 1s supported in the usual way from sucker rods, notshown.Secured to the lower endof the barrel 11 is a'shoe 12, this shoe havingan openin therethrough concentric with the axis 0-. of the pump. Theupp'erportion of the opening 13 is provided with a short conical seat14,-upon which a standing valve body 15 is seated, this body having aconical seat 16'co-acting with the seat 14. The up-' per portion of thebody 15 is threaded as shown at 17, for the reception ofthe lowerportion of a-cage 18. A hardened seat 19 is clamped between the cage 18and the upper.

is free to'r'nove vertically inside the 18 and to seat upontheupperportion o the seat'19. Thebod'y'15 lsj'provided with an annulargroove 30 which completely encircles it below the seat 16, and situatedin this groove is a split ring 31. This ring is preferably formed ofspring steel and is so made that it tends to ex and into the positionshown in Fig. 1. X conical surface 35 is provided inside the opening 13below the seat 14, this opening 35 being in such a position that theupper wall 36 thereof is engeged by the ring 31 with the valve seat inace. p The standin valve body can be readily inserted or withdrawn fromthe shoe by exertin suitable pressure thereon, the ring 31 readi ycontracting to pass through the narrow portion of the opening'13 belowthe seat 14. It is, however, necessary to exert con siderable force uponthe ring to withdraw it, and any movement-of the standing valve body 15in the seat due to vibration of the pump,'or due to the escape of gasupwardly therethrough, simply tends to wedge or seat the standing valvebody 15 more firmly in the opening 13. This seating of the standingvalve body is very important, as it tends to exclude foreign matter fromthe seat 14.

and to prevent any leakage therearound. It is very important that thestanding valve seat be so constructed that sand deposited on the uppersurface thereof will not cause it to stick and bind. By placingthe'split rin 31 below the seat 14, the ring 31 is protecte from silt,and there is no tendency for it to become jammed.

I claim as my invention:

1. In a wellpump, the combination of: a shoehaving a longitudinalopening therein; a standing valve body in said shoe opening; andresilient means acting on inclined sur faces formed in said shoe openingto force said standing valve body against said seat.

2. In an oil well pump, the combination of: a shoe having a centralopening therein; a standing valve body adapted to be seated on aseat 1nthe upper portion of said opening; and resilient means below said seatacting on inclinedsurfaces formed in said central opening of said shoeto force said standing valve body against said seat.

3. Inan oil well pump, the combination of: a shoe having a centralopening therein; a standin valve body adapted to be seated on a seat inthe ing; and resilient means carried by said standing valve body belowsaid seat acting on inclined surfaces formed in said central opening ofsaid shoe to force said standing valve body against said seat.

4. In an Oll well pump, the combination off a shoe having a centralopening therein; a standing valve body ada ed to be seated ion a seat inthe upper portion of said openmg; and an elastic ring below said seatacting on inclined surfaces formed in said central opening of said shoeto force said standing valve bod against. said seat.

'5. In an oi well pump the combination of: a shoe having a centralopening therein; a standing valve body adapted to be seated on a seat inthe upper portion of said open-.

mg; and an elastic ring carried by said standing valve body below saidseat acting on inclined surfaces formed in said central opening of saidshoe to force said standing valve body against said seat.

6. In an oil well pump, the combination of: a shoe having a centralopening therein;

a standing valve body adapted to project into said opening and seatedtherein; and a resilient split ring substantially coaxial with saidopening, said ring being carried in a groove in said standing valvebody, and being sufiiciently expansible to'engage a conical shoulderformed on the inner surface of said opening, thus forcing said standingvalve body downwardl in said shoe.

In testimony whereo I have hereunto set my hand at Los'Angeles,California, this 15th day of April, 1924.

PETE RITTER.

upper portion of said open-'

